Input validation error in dnsdist - CVE-2018-14663

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Main Vulnerability Database Vulnerabilities #VU77909

Input validation error in dnsdist - CVE-2018-14663

Published: July 3, 2023


Vulnerability identifier: #VU77909
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-14663
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
dnsdist
Software vendor:
PowerDNS.COM B.V.

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing DNS queries. A remote attacker can smuggle certain DNS records into the DNS backend and perform spoofing attack. This issue occurs only when either the ‘useClientSubnet’ or the experimental ‘addXPF’ parameters are used when declaring a new backend.


Remediation

Install updates from vendor's website.

External links